would you put a s/c on a 75,000mile car?

[pae9132]

I'm just curious if you guys think it would be worth it to put a s/c on a car with 75,000 miles. I really want one but I don't know how long the engine will last. my car is also automatic. thanks for the opinions

[TJMaxx98]

If you have the extra cash...why not. If you like the G35, you might want to make sure the S/C would fit newer model year G's that way you can take your S/C with you. If you could do the work yourself might be another factor...would hate to spend that kind of money for the install and then turn around in a few years and pay someone to uninstall it.

Good luck!!

[Kenrik]

^ you sound like you're talking out your ***.

[Gimli G35]

^ you sound like you're talking out your ***.

damn accidently deleted , no i work at an autoshop that does FI installs ....

[pae9132]

the risk part sounds kind of scary..it's my only car....I really just want to get to 300rwhp but I'm not sure if I can do it with a NA car and also keep it street legal....hhhhmmmmmmm.......

[SVTCOBRA]

WHen I first read your post, I was like what the heck, do it.But, this is your only car.I think I would do all of the normal intake/exhaust mods first and see what that gives you. You would need the exhaust mod anyway if your going to be forcing more air in with a SC eventually. Hey, I like spending your money!

[blkonblk350gt]

or you can do what i did to get to 300whp, nitrous im at 306 to the wheels

[infinitgkid]

if its your only car and you're not a risk taker

I suggest you invest in a 240, they're really cheap and great cars in general

I'm thinkin about getting a s13 coupe myself later on down the road...

[BrandAidDesignG35]

me too

I want a 95+ 240sx

As for the supercharged G35 ... I say go for it, but also look into NO2, it may cost less

[kmech_7]

i would put it on....

oh wait....i did at 75,000 miles. i also have an auto trans. i built it though.

see...

http://www.nicoclub.com/ROTM/rotmjul08.shtml

[TeflonG35]

Ive read a lot of car magazines where people write in ask this question. The answer is always the same. Get a compression check.

[Jacko3]

A car's compression never stays the same as the engine ages. I would think that the compression would have reduced to a reasonable level at 75,000 miles, which makes the supercharger potentially safer for your car, as far as heat egnerated is concerned. The higher the compression ration, the more dangerous power adders are. The less the compression ratio, which can be achieved by rebuilding the engine or by natural wear and tear, the better the power adder will work with the car. This is just my assumption. I could be wrong.

[Q45tech]

The newer narrower lead free bearings may not take the long term + power increase well. I would replace them with new at minimum.

[C-Kwik]

A car's compression never stays the same as the engine ages. I would think that the compression would have reduced to a reasonable level at 75,000 miles, which makes the supercharger potentially safer for your car, as far as heat egnerated is concerned. The higher the compression ration, the more dangerous power adders are. The less the compression ratio, which can be achieved by rebuilding the engine or by natural wear and tear, the better the power adder will work with the car. This is just my assumption. I could be wrong.

The compression ratio of a motor is not affected by wear. The effective compression might be, but that would be due to ring sealing problems, which is a problem that should be resolved even with a normally aspirated motor. Adding boost will only make the problem worse as the higher pressures will cause more blow-by.

[Sentientbydesign]

Thanks C-Kwik,

I just looked up compression ratios to clarify that concept. For a while I, like Jacko, thought that the compression ratio was somehow related to the piston rings.

[Jacko3]

C-Kwik:

Thanks. I agree with you. You put the concept in perspective. I had the same thought as Nate as well. So, you are saying that the older the vehicle, the worse ot gets when a supercharger is added.

[C-Kwik]

C-Kwik:

Thanks. I agree with you. You put the concept in perspective. I had the same thought as Nate as well. So, you are saying that the older the vehicle, the worse ot gets when a supercharger is added.

Not necessarily. While older high mileage engines are more likely to have a higher degree of wear, it doesn't automatically mean the piston rings are not going to be sealing. Its certainly riskier with higher mileage engines, but how much depends on the state of the motor. A well maintained motor with 100K miles may be better suited to handle boost than a 25K motor that was subjected to neglect...

[MUNNNJEE]

i dont see why not...a lot of ppl go FI with high mileage

[BrandAidDesignG35]

Well, another good point is putting FI into an older Higher mileage car will cost less, with less risk involved in the event that something should go wrong.

If it were me, I'd opt to get a cheap beater, and put the Savings into the turbo or SC setup. Kinda why I got the altima... Except it's an altima... I rape civics.